Windshield cleaning blade



Jan. 19, 1954 RAPPL WINDSHIELD CLEANING BLADE Filed Sept. 19, 1947 Ear - INVENTOR. Anton Rap o/ BY QM, M wvmm.

' ATTORNEYS.

Patented Jan. 19, 1954 WINDSHIELD cmsmmanmna Anton'Bappl, Eggertsville, N; Y., assignorto 'llrico Products. Corporation, BufialmNllT.

Application S'eptember 19, 1947', Serial- No. 7-'f4;9'06

6 Claims. 1.-

This invention; relates to the windshield: clean.-

'ing artand: more particularly to the wiper blade, the samebeingiarrimprovement. on.the= disclosure made: in" copending. application Serial No. 65.56 37,

- now. Patent No. 2:613 806, November. 25; 1952., whereirrisshower and: claimed: a blade mounting which an. arm engaging: clip: orhousing is pivotally mounted, on theback of; the blade. and provided. with. a chamber. for enclosing a latch spring which secures. the connectionbetween: the bladeandiits'aactuatingqarm;

. The: primary object of the present: invention is to; simplify the blade; mounting. and thereby render it more economical in production.

Afiirther; important object of the invention-resides: in. an improved construction which will facilitateitheassemblyof: the clip parts and. at the same: time: provide an improved action. tending tenormaliaezthe bladewithaespect to the surface being: wiped.

The foregoingand; other objects will manifest themselves as the; following description 7 progresses, reference being hacLto the accompanying drawing-wherein? g Fig.v 1.1 is. a fragmentary; sideelevation depicting a windshield cleaner constructed. in. accordance with'the presentinvention; 7 l

Eigl. 2 is. an enlarged: longitudinal section throughthe,blademounting; and

Fig. 3': is a transverse-sectionalyiewabout on Referring more particularly to the drawing, the numeral: I designates a power shaft on the outer end of which is fixed a wiper arm having a mountingsection-land a blade carryingsection 3pivotally joined-by pin. 4 andnormally urged toward the windshield glass 5 by a iiat spring 5 bearing .upon .ashoulder 1 on the mounting section. The outer. endv of the arm is'formed: With"3;. curved tongue 8".ha'ving a latch shoulder-6 designed" for engagingwith a shoulder Won the mountingclip onhousing l I, such engagement being detachably ,maintainedby a flat spring l2 so as to operatively adjacent. depression. which latterforms: at: imternal. convex wall. la! designed: to; more? or less nestingly fit within; a: curved tongue 8; of; the wiperarm. The: wall. H is relievedat libto. pro.- vide the, shoulder: Mirandalso toreceiyea-theinter locking latch shoulder 9 underxtheurgeyof. the spring; [2. Theopposite ends: of thespring are formedwithproiections:tawhiolrengageinropeningsld'm; the opposite end walls l.4-, thereby. locating thespring. in its proper position: and:sup+- porting; the same withan upward bow or con.- vexity in contact withithe-convext wall [-1. of. the housing. Whenv inserting. the arm: tongue 8 through the opening. Hi; the intermediatelportion oi the spring is depressed so as. to permit the shoulder. 91 passing beyond the shoulder 10, where.- upon the spring will liit the arm. terminal. and hold the shoulders cooperatively engaged.

The. clip. housing. H. is pivotally. mounted on the. bladev for permitting the latter torock about its wiping edge and assumean inclineddragging positionet the beginning. ofeach stroke- To this end the oppositeendwalls M- areiormed with bearings M to freely. receive the bladecarried pintles- 22.. For limiting. the rocking movement of. the bladeon. itsmounting. H, lateral stops. 23 are providedon thebladeheneath. the loweredges of the side walls l3: so. as. to be contacted by the same. and thereby. determinathe wiping. position of. th bladaas. indicated by the. broken lines yli.

These. cars. 23. and. the pintles 22. may be. struck from. the. sheet metal backing or channeledmem-r ber. 2.5lof the blade whichis of channel iormand which. clampingly embraces thev rubber or squeegee body 26.. Or,.a separatechanneledmem: her 2T. may. be proyidediespecially. for thispnrpose, asshowrn The. channeled member 2.1 isinrcrted over. thebackoflthe. channelediholder. 25 to strad dlethe same, inwhichuositionit' isnrmly secured bya'rivet' 23; The pintles are'struckupwardly to elevate them slightly irom the back.- wall: 23 and are. also given a channeled. form for rein: forcement'. The stop ears 23 are stamped. from the. side walls of the blade carried clipsection Z1 and preferably lie in the plane of'the back wall intermediate portion of the normalizing spring has oppositely extending lateral parts 3i which underlie the lower edges of the side walls 13 and thereby serve to properly support the spring in place. The several parts of the mounting clip, with or without its blade straddling section 2'1, are readily stamped from sheet metal stock. lhe side walls 13 may be cut away to conform to the shape of the depressed wall I! for enhancing the appearance.

While the foregoing description has been given L in detail, it is apparent that the inventive concept and teaching of the present disclosure are capable of assuming other physical embodiments without departing from the spirit of the invention and the scope of the appended claims.

What is claimed is:

' 1. A wiper blade member, an arm attaching clip member extending lengthwise thereof, means pivotally connecting the two members to permit the blade rocking laterally upon its wiping edge,

the clip member being in the form of a hollow housing having a back wall and end walls which oppose each other, the latter being relatively displaceable and formed with seats, and a flat spring having its opposite ends engaged in the seats under compression to support the spring bowed toward the back wall and removable from the end walls upon their relative displacement, the back wall having an opening for interlockingly receiving one end of an actuating arm against the action of said spring.

2. A wiper blade member, an arm attaching clip member, means pivotally connecting the two members, the clip member being in the form of a hollow housing having a back wall opposite the blade member and also opposed end walls, the latter being formed with seats, a fiat spring having its opposite ends engaged in the seats to support the spring under compression bowed toward the back wall, the back wall having an opening for interlockingly receiving one end of an actuating arm against the action of said spring, and a second bowed flat spring having its opposite ends bearing upon the first spring and its intermediate portion reacting against the blade member for exerting a normalizing influence on the wiper blade with respect to the surface being wiped. 3. A wiper blade having an inverted channeled member with a flat back and oppositely extend-- ing stop parts struck outwardly from the opposite sides thereof of the channel to extend in the plane of the back, an arm attaching clip housing pivotally connected to the channeled member for lateral swinging about a fixed longitudinal axis and having depending side walls engageable with the stop parts to determine the dragginginclination of the blade with respect to 4- the clip housing when in operation, and a spring contained within the housing and exerting a downward normalizing pressure on the back wall at opposite sides of the longitudinal axis tending to urge the blade to an upright position on the surface being wiped.

4. A wiper blade, an arm attaching clip housing pivotally connected thereto and having an arm receiving recess in its back for receiving a latch part of the arm, a spring in the housing opposing the back wall and yieldable therefrom to permit insertion of the latch part in the recess and thereafter to hold the latch part operatively associated with the recess of the clip, and a second spring having bearing support on the first spring and reacting on the blade for exerting a normalizing urge thereupon.

5. A wiper blade, an arm attaching clip housing pivotally connected thereto and having a chamber opening toward the blade with a recess in its back for receiving a latch part of the arm, a spring in the housing extending lengthwise of the blade and acting toward the back of the chamber to hold the latch part engaged with a shoulder on the clip housing, the back of the blade having a transverse bearing surface, and a second spring compressed between the first spring and the bearing surface for exerting a normalizing urge upon the blade, both springs being insertible into the chamber through the open side thereof and preliminary topivotally mounting the clip upon the blade whereby the blade will serve to hold the springs against displacement from the chamber.

6. A wiper blade having oppositely extending pintles, an arm attaching clip housing in the form of an inverted cupped stamping having opposing side and opposing end walls depending from a back wall, the back wall of the housing having an arm receiving opening for receiving an interlockable arm terminal, the opposing end walls having spring seats and pintle bearings, a fiat spring within the housing having its opposite ends engaged in the seats and being wholly supported by the housing in opposition to the back wall for yieldably holding the arm terminal en gaged therewith, said clip housing and spring being mountable on the blade as a unit, and said end walls being relatively displaceable to engage the pintles in the bearings and the spring in the seats, and means connecting the housing to the blade.

ANTON'RAPPL.

References Cited in the file of this patent UNITED STATES PATENTS Scinta Apr. 8, 

